// Press Shift twice to open the Search Everywhere dialog and type `show whitespaces`,
// then press Enter. You can now see whitespace characters in your code.
public class Main {
    public static void main(String[] args) {
        CPU cpu;
        cpu =new CPU();
        cpu.setSpeed(2200);
        HardDisk disk;
        disk =new HardDisk();
        disk.setAmount(200);
        PC pc;
        pc=new PC();
        pc.setCpu(cpu);
        pc.setHD(disk);
        pc.show();

    }
}